Sagot :
i have a song for you with a tone of row row row your boat same sign add and keep different sign subtract and get the sign of the higher number (absolute value) then it will be exact
Use the number line for adding and subtracting integers :
Add a positive integer by moving to the right on the number line
Add a negative integer by moving to the left on the number line
Subtract an integer by adding its opposite
Add a positive integer by moving to the right on the number line
Add a negative integer by moving to the left on the number line
Subtract an integer by adding its opposite